- dovecot - dovecot.org

[2.2.25 auth issue] auth-request.c: line 1049 (auth_request_lookup_credentials): assertion failed: (request->credentials_scheme == scheme)
by Alexey Asemov (Alex/AT) 26 Jul '16

26 Jul '16

Hello, Since updating to 2.2.25, we do have the following issue (seems to be related to the new auth policy code): Jul 9 00:00:14 LXmail01 dovecot: auth-worker(6558): sql(user(a)domain.org,*.*.*.*,<wjpa7SY3nNFR8yTo>): unknown user Jul 9 00:00:14 LXmail01 dovecot: auth: Panic: file auth-request.c: line 1049 (auth_request_lookup_credentials): assertion failed: (request->credentials_scheme == scheme) Jul 9 00:00:14 LXmail01 dovecot: auth: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0x8d57e) [0x7f197bd8157e] -> /usr/lib64/dovecot/libdovecot.so.0(+0x8d65e) [0x7f197bd8165e] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f197bd201f6] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](+0x1a15a) [0x7f197c44715a] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](+0x26f8f) [0x7f197c453f8f] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](+0x19d2b) [0x7f197c446d2b] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](auth_request_lookup_credentials_callback+0x68) [0x7f197c4 46e28] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](passdb_handle_credentials+0x92) [0x7f197c457742] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](+0x2af06) [0x7f197c457f06] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](+0x2065a) [0x7f197c44d65a] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7f197bd94edc] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_in ternal+0xff) [0x7f197bd9633f] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f197bd94f65] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f197bd95118] -> /usr /lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f197bd26663] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](main+0x3a1) [0x7f197c43cbe1] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f197b30ab15] -> dovecot/auth [1 wait, 0 passdb, 0 userdb](+0xfdd1) [0x7f197c43cdd1] Jul 9 00:00:14 LXmail01 dovecot: auth: Fatal: master: service(auth): child 6555 killed with signal 6 (core dumps disabled) Jul 9 00:00:14 LXmail01 dovecot: pop3-login: Warning: Auth connection closed with 1 pending requests (max 1 secs, pid=8133, EOF) Environment is MySQL passdb/userdb, we are using plain scheme as default and password_noscheme field. In 2.2.24 and below auth worked without scratch. Reverting all policy-related commits in 2.2.25 fixes this, but I have not dug the details. KR, Alex

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Doveadm error
by László Károlyi 25 Jul '16

25 Jul '16

Hey everyone, I've got a weird error since I upgraded to the latest dovecot on my FreeBSD box: root@postfixjail /# doveadm quota recalc -u xxx(a)xxx.com doveadm(xxx(a)xxx.com): Error: dict-client: Commit failed: Deinit fish: 'doveadm quota recalc -u xxx@…' terminated by signal SIGSEGV (Address boundary error) root@postfixjail /# dovecot --version 2.2.25 (7be1766) root@postfixjail /# dovecot -n # 2.2.25 (7be1766): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.15 (97b3da0) # OS: FreeBSD 10.3-STABLE amd64 auth_cache_negative_ttl = 0 auth_cache_ttl = 0 auth_mechanisms = plain login cram-md5 digest-md5 auth_realms = flix.hu base_dir = /usr/local/var/run/dovecot/ default_login_user = nobody dict { quota = mysql:/usr/local/etc/dovecot/dovecot-dict-sql.conf.ext quota_rule2 = Trash:bytes=+100M } listen = * login_trusted_networks = 127.0.0.0/24 mail_location = mdbox:~/mdbox mail_plugins = quota managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext vnd.dovecot.pipe mdbox_rotate_size = 20 M namespace { inbox = yes location = prefix = separator = . } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = dict:User quota::proxy::quota sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /usr/local/etc/email-responder sieve_plugins = sieve_extprograms } postmaster_address = postmaster(a)flix.hu protocols = imap pop3 lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { process_min_avail = 3 service_count = 1 } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 2 service_count = 1 } service managesieve { process_limit = 1024 process_min_avail = 2 } service pop3-login { process_min_avail = 3 service_count = 1 } ssl = required ssl_cert = </usr/local/etc/dovecot/ssl/server.crt ssl_key = </usr/local/etc/dovecot/ssl/server.pem userdb { driver = prefetch } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = quota sieve } protocol lmtp { mail_plugins = quota sieve } protocol sieve { mail_plugins = quota sieve managesieve_max_line_length = 65536 } protocol imap { mail_max_userip_connections = 20 mail_plugins = quota imap_quota } protocol pop3 { mail_max_userip_connections = 15 mail_plugins = quota } root@postfixjail /# uname -a FreeBSD postfixjail.xxx.com 10.3-STABLE FreeBSD 10.3-STABLE #19 r302639: Tue Jul 12 13:54:21 CEST 2016 root@flix.hu:/usr/obj/usr/src/sys/MYKERNEL amd64 There seems no difference of which virtual mailbox I want dovecot to quota recalculate, it always fails with this error message. Any suggestions? Cheers, -- László Károlyi http://linkedin.com/in/karolyi

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maildirsize calculation gives higher value than a real disk utilization
by Andrea Lisci 25 Jul '16

25 Jul '16

Hi, hope someone can help also if this problem is difficult to debug I have a mail account that has on file system 32GB however quotacalculation gives a higher value 41262146 I've already tried to: - doveadm quota recalc -u user@domain - removing maildirsize from /users/vmail/domain/user/Maildir - checking all emails messages if they have the size in the name (S=xxxx) different from the real size. I used the script here in attach giving it in input the output of << find /users/vmail/domain/user -name *S=* -type f>> I don't have mail compression the mail account have a lot of mailboxes and at now 78319 messages doveadm quota get -u user@domain Quota name Type Value Limit % User quota STORAGE 41262146 42991616 95 User quota MESSAGE 78319 - 0 this is the same command run with -Dv doveadm(root): Debug: Loading modules from directory: /usr/lib64/dovecot doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib10_quota_plugin.so doveadm(root): Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm doveadm(root): Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so: undefined symbol: acl_user_module (this is usually intentional, so just ignore this message) doveadm(root): Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_quota_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_sieve_plugin.so doveadm(root): Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) doveadm(root): Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_plugin.so: undefined symbol: fts_backend_rescan (this is usually intentional, so just ignore this message) doveadm(user@domain): Debug: Added userdb setting: mail_location=maildir:/users/vmail/domain/user/Maildir doveadm(user@domain): Debug: Added userdb setting: plugin/quota_rule=*:storage=41G doveadm(user@domain): Debug: Effective uid=5000, gid=5000, home=/users/vmail/domain/user doveadm(user@domain): Debug: Quota root: name=User quota backend=maildir args= doveadm(user@domain): Debug: Quota rule: root=User quota mailbox=* bytes=44023414784 messages=0 doveadm(user@domain): Debug: Quota warning: bytes=41822244044 (95%) messages=0 reverse=no command=quota-warning 95 user@domain doveadm(user@domain): Debug: Quota grace: root=User quota bytes=20971520 doveadm(user@domain): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/users/vmail/domain/user/Maildir doveadm(user@domain): Debug: maildir++: root=/users/vmail/domain/user/Maildir, index=, indexpvt=, control=, inbox=/users/vmail/domain/user/Maildir, alt= Quota name Type Value Limit % User quota STORAGE 41202926 42991616 95 User quota MESSAGE 78247 - hope someone can help I'm running dovecot-2.2.10-5.el7 on centos7

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postconf -n display error for "remote"?
by Michael Fox 25 Jul '16

25 Jul '16

Is this a bug? I configured the following: remote 192.168.7.128/27 { ssl = no } remote 192.168.7.0/24 { ssl = yes } But, when I run doveconf -n, I see: remote 192.168.7.0/24/24 { ssl = yes } remote 192.168.7.128/27/27 { ssl = no } Note the repeated network prefix length (/27/27 and /24/24). Is there a way to tell for sure whether this is just a cosmetic issue or something that could cause a problem? Michael

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Cannot connect to Dovecot IMAP or POP
by C. Andrews Lavarre 24 Jul '16

24 Jul '16

Hello all. Thank you for your service. Easy when you know how, but presently I do not. After literally months of research and experimentation we simply cannot log into our PAM / apache2 / postfix / dovecot pop3/imap STARTTLS email server with an ordinary email client, e.g., Evolution or Thunderbird. We can connect to the host server in a host of different ways (no pun intended)—http, https, ssh, vnc, telnet, openssl -sclient Similarly we can connect to postfix and dovecot in yet another number of ways—telnet, openssl -sclient—but cannot log in to the email server with a normal email client (either Evolution or Thunderbird) by either pop3 or imap. SSL certificates are in place, verified, and tested. Part of the problem is the many changes in all the involved operating systems and protocols (e.g., imaps and pop3s are deprecated, openSUSE has migrated to LEAP, etc.) so many of the docs from Google are no longer valid. Additionally, there simply are bugs: Leap 42.1 YAST does not work when it comes to setting up websites. Documented. But I digress. I'm sure it's something really simple, but it evades me. Research details below. Any help would be more than appreciated. Thanks in advance, Andy ======================= Configuration testing details ======================= System is: Linux openSUSE Leap 42.1 Dovecot --version 2.2.18, Postfix Version: 2.11.6-3.1 Apache2 Version: 2.4.16-9.1 Connections 1. Evolution or Thunderbird to pop3 or imap reports: The reported error was "Could not connect to mail.privustech.com: Connection refused". Both connect successfully to googlemail.com with the same protocol: Port 993 SSL on a dedicated port I have also tried Port 143 STARTTLS after connecting without success 2. openssl s_client -connect mail.privustech.com:xxx a. xxx=25, 110, 143 all return error:140770FC b. xxx=993, 995 return socket: Connection refused connect:errno=111 3.telnet to a. smtp works. b. pop3 andy@tm2t:~> telnet 70.186.159.22 110 ... +OK POP3 2007e.104 server ready <48fa.572a0769(a)privustech.com> ... user andy -ERR Unknown AUTHORIZATION state command c. imap connects but does not allow login, and should not. http://marc.info/?l=imap&m=118775891829506&w=2 The most simple answer is "you cannot TELNET to a modern, correctly-configured, IMAP server and log in to it." andy@tm2t:~> telnet 70.186.159.22 143 ... * OK [...] privustech.com IMAP4rev1 2007e.404 at Wed, 4 May 2016 10:26:28 -0400 (EDT) ... A NO Invalid login credentials Modules • Apache2 works just fine. The server is up and answering. ping works just fine. We have http and https to all vhost sites (privustech, mailprivustech, nptbeyond, gvhl, truthcourage, and their www. subsites). • Postfix reports no errors. We can log in on localhost, send a message to ourselves and see the message. • Dovecot: a. Logging is enabled in 10-logging.conf to /var/log/dovecot.conf but no logging has occurred there. b. doveconf -n throws no errors. Checks and tests completed 1. /etc/hosts is just fine. 2. Firewall is open for telnet, postfix, dovecot. 3. Added andy to dovecot, postfix groups, in addition to mail, reset password to ANDYbbs14@. 4. We tried enabling imaps, pop3s, but this command returns errors about these protocols being obsolete. https://tools.ietf.org/html/rfc2595 Use of these ports is discouraged in favor of the STARTTLS or STLS commands. 5. Reviewed doveconf -n: a. Note, there are no Dovecot users established other than user postfix group postfix service auth { unix_listener auth-userdb { group = postfix user = postfix } } i. postfix has its own set of users, including andy, which works just fine within postfix. We can send mail and read mail in the mailbox. b. Authentication is performed by PAM: passdb { driver = pam } i. Examined PAM: A. The files /etc/pam.d/xxx, where xxx = dovecot, pop, imap, are all the same lavarre:~ # cat /etc/pam.d/xxx #%PAM-1.0 auth include common-auth account include common-account password include common-password session include common-session B. They do not resemble at all the form presented in http://wiki2.dovecot.org/PasswordDatabase/PAM passdb { driver = pam args = %s } C. Add (B.) to see if that works: No change. Comment out the original (A.): No change. Restore it. c. SSL is required and apparently configured correctly (the less-than symbol '<'causes the succeeding file to be read into the variable): ssl = required ssl_cert = </etc/ssl/certs/dovecot.pem ssl_dh_parameters_length = 2048 ssl_key = </etc/ssl/private/dovecot.pem ssl_options = no_compression ssl_prefer_server_ciphers = yes userdb { driver = passwd } i. dovecot.pem, both cert and key, are installed in /etc/ssl as above and verified as a pair with openssl x509. And we point to them in /etc/dovecot/conf.d/10-ssl.conf as seen in the above. 6. Checked listening as it does not appear in doveconf -n: lavarre:~ # doveconf protocols listen protocols = imap pop3 lmtp listen = *, :: a. conf.d/10-master.conf ports for service xxx-login {inet_listener} are commented out. In fact, the entire file is commented out. Uncomment the listeners, restart. But no change. So undo.

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Thunderbird | Attachments failed opened
by Jos Chrispijn 23 Jul '16

23 Jul '16

It lately happens that I cannot open attachments in Thunderbird45.2.0. Only when I resend the email to myself I can open it. What could be done? Found out that with Outlook there is noproblem opening these attachments. Thanks, Jos -- AI is no match for natural ignorance

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Managesieve problem
by Joseph Mays 23 Jul '16

23 Jul '16

Trying to get either avelsieve or server side filters to work with managesieve. Managesieve is running but whenever avelsieve or the server settings backend try to talk to it the same thing happens. So I guess it's really a problem with something about managesieve at this point. I hit the Message Filters option, it takes a long time for it to come back, though it finally just times out and does nothing, and immediately when I click on the Message Filters link the following two messages appear in /var/log/dovecot.... 2016-07-18 17:03:02 managesieve-login: Error: auth: connect(login) in directory / failed: Permission denied (euid=108(<getpwuid() error>) egid=65534(<getgrgid() error>) missing +x perm: /, dir owned by 0:111 mode=0750) 2016-07-18 17:03:02 managesieve-login: Error: auth: connect(login) in directory / failed: Permission denied (euid=108(<getpwuid() error>) egid=65534(<getgrgid() error>) missing +x perm: /, dir owned by 0:111 mode=0750) Seems to be straightforwardly a permissions error on a directory, but I don't believe it's really the / directory, so which directory is it? Any insights on where to look would be appreciated.

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Disable auth_ssl_require_client_cert for SASL
by damir 22 Jul '16

22 Jul '16

Hello! Dovecot version - 2.2.6 Postfix version - 2.10.2 OS: Mageia Linux 4 x86_64 I have configured Dovecot imaps-server on 993 port to authenticate users via private certificates: auth_ssl_require_client_cert = yes auth_ssl_username_from_cert = no Users' database is in OpenLDAP and in dovecot-ldap.conf.ext checking of users' passwords is disabled: pass_attrs = uid=%n, mail=%n@%d, =nopassword=1 It all works fine. I have configured Postfix submission-service on 587 port to connect users via StartTLS: submission inet n - y - - smtpd -o smtpd_tls_security_level=encrypt -o smtpd_enforce_tls=yes -o smtpd_tls_req_ccert=yes -o smtpd_tls_ask_ccert=yes -o smtpd_client_restrictions=permit_tls_all_clientcerts,reject -o smtpd_recipient_restrictions=permit_tls_all_clientcerts,reject -o smtpd_helo_restrictions=permit_tls_all_clientcerts,reject It works fine. And now I have a new task: I also need Postfix to authenticate OpenLDAP-users using SASL on smtps-port 465. I need it for using on mobile devices, which don't support StartTLS. So I have configured smtps in Postfix: smtps inet n - y - - smtpd -o smtpd_tls_wrappermode=yes -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes -o smtpd_sasl_type=dovecot -o smtpd_sasl_path=private/auth -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject_unauth_destination -o smtpd_helo_restrictions=permit_sasl_authenticated,reject While trying to connect to smtps, clients get an error: "Client didn't present valid SSL certificate", and this is clear. The question is: how to configure an additional auth-service in dovecot, which doesn't require private certificates and authenticates users using login/password? Configuration-files: dovecot -n: # 2.2.6: /etc/dovecot/dovecot.conf # OS: Linux 3.14.43-server-1.mga4 x86_64 Mageia 4 ext4 auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain login auth_socket_path = /var/run/dovecot/auth-userdb auth_verbose = yes base_dir = /var/run/dovecot/ first_valid_gid = 12 first_valid_uid = 8 hostname = myexample.com last_valid_gid = 12 last_valid_uid = 8 listen = * login_greeting = Dovecot L ready. login_trusted_networks = 127.0.0.0/8 10.62.0.0/16 mail_debug = yes mail_gid = 12 mail_home = /home/mail/%d/%n mail_location = maildir:/home/mail/%d/%n mail_uid = 8 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext default_fields = homeDirectory=/home/mail/%d/%n driver = ldap } plugin { sieve = /home/mail/%d/%n/sieve/UsersActiveScript.sieve sieve_before = /var/spool/mail/dovecot.sieve sieve_default = /var/spool/mail/dovecot.sieve sieve_dir = /home/mail/%d/%n/sieve } postmaster_address = admin(a)myexample.com protocols = imap service anvil { type = anvil unix_listener anvil-auth-penalty { group = mail mode = 0600 user = mail } unix_listener anvil { mode = 0600 user = mail } } service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = mail mode = 0600 user = mail } } service imap-login { inet_listener imap { port = 0 ssl = no } inet_listener imaps { port = 993 ssl = yes } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 0 } } ssl_ca = </etc/pki/CA/private/dovecot-ca.pem grep -v '^ *$#.*$\?$' /etc/dovecot/dovecot-ldap.conf.ext: uris = ldap://localhost dn = cn=service,ou=Systems,dc=myexample,dc=com dnpass = SeCrEt auth_bind = no ldap_version = 3 base = ou=People,dc=myexample,dc=com deref = never scope = subtree user_attrs = homeDirectory=home user_filter = (&(mail=%n@%d)(uid=%n)) pass_attrs = uid=%n, mail=%n@%d, =nopassword=1 pass_filter = (&(mail=%n@%d)(uid=%n)) Kind regards, Damir

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Suggested improvement for antispam plugin documentation
by Ralph Seichter 21 Jul '16

21 Jul '16

Hello, I struggled a bit with getting the antispam plugin to work, because the plugin configuration in http://wiki2.dovecot.org/Plugins/Antispam is incomplete. After some twiddling, I ended up with this: # /etc/dovecot/conf.d/90-plugin.conf plugin { antispam_backend = mailtrain antispam_mail_spam = spam antispam_mail_notspam = ham antispam_mail_sendmail = /path/to/mailtrain/script antispam_spam = Junk;Spam antispam_trash = Deleted Messages;Trash } I know that the antispam plugin has not yet been officially released, but I think it might be worth updating the documentation anyway. Your thoughts? -Ralph

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an e-mail client for dovecot ?
by Spyros Tsiolis 21 Jul '16

21 Jul '16

Hello all, For some years now, I've been using Thunderbird for dovecot. I am not very satisfied with t/b so I thought of using m/s outlook but then I thought that I want to distance my clients from office products. I have a newly created dovecot installation on a very small site. Three nodes, all x86 Windows 7 professional with an ubuntu v14.04 server (x86 again) running dovecot 1.2.17. The clients there use dovecot as an imap server, so they have a real-world e-mail account each and whatever they want to keep , they store by gradding-and-dropping to the imap (local / archive) account. Since I have quite some experiece with thunderbird, I know most of its shortcomings; So I thought if there's an alternative (better?) imap mail client for x86 windows 7 systems than t/b. Even better if there's an alternative client that is also supporeted under linux . Any ideas are welcome, TIA, s.t.

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